CA2082020A1 - Device for twisting rope-shaped material with changing twist direction - Google Patents
Device for twisting rope-shaped material with changing twist directionInfo
- Publication number
- CA2082020A1 CA2082020A1 CA002082020A CA2082020A CA2082020A1 CA 2082020 A1 CA2082020 A1 CA 2082020A1 CA 002082020 A CA002082020 A CA 002082020A CA 2082020 A CA2082020 A CA 2082020A CA 2082020 A1 CA2082020 A1 CA 2082020A1
- Authority
- CA
- Canada
- Prior art keywords
- pressure
- rail
- collet
- collet chucks
- along
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000000463 material Substances 0.000 title claims abstract description 31
- 230000037361 pathway Effects 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 2
- 241001131688 Coracias garrulus Species 0.000 description 20
- 238000003860 storage Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- CEJLBZWIKQJOAT-UHFFFAOYSA-N dichloroisocyanuric acid Chemical compound ClN1C(=O)NC(=O)N(Cl)C1=O CEJLBZWIKQJOAT-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- ONCZDRURRATYFI-QTCHDTBASA-N methyl (2z)-2-methoxyimino-2-[2-[[(e)-1-[3-(trifluoromethyl)phenyl]ethylideneamino]oxymethyl]phenyl]acetate Chemical compound CO\N=C(/C(=O)OC)C1=CC=CC=C1CO\N=C(/C)C1=CC=CC(C(F)(F)F)=C1 ONCZDRURRATYFI-QTCHDTBASA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
- D07B3/005—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material with alternating twist directions
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
- H01B13/0235—Stranding-up by a twisting device situated between a pay-off device and a take-up device
- H01B13/0264—Stranding-up by a twisting device situated between a pay-off device and a take-up device being rollers, pulleys, drums or belts
Abstract
ABSTRACT OF THE DISCLOSURE
A device (1) is used for twisting rope-shaped material (15), particularly of a larger cross section, with changing twist direction (SZ), consisting of a rotor (4) that changes direction and/or RPM, with two opposing chain drives (7) for the material (15), which are parallel to the rotor axis along an endless path. The material is gripped, guided and subsequently released by collet chucks along a prescribed pathway determined by a pressure rail (16). The collet chucks (14) are additionally attached to the chain drives (7) outside of the pathway, and are force-guided along the endless path.
A device (1) is used for twisting rope-shaped material (15), particularly of a larger cross section, with changing twist direction (SZ), consisting of a rotor (4) that changes direction and/or RPM, with two opposing chain drives (7) for the material (15), which are parallel to the rotor axis along an endless path. The material is gripped, guided and subsequently released by collet chucks along a prescribed pathway determined by a pressure rail (16). The collet chucks (14) are additionally attached to the chain drives (7) outside of the pathway, and are force-guided along the endless path.
Description
2 ~ 2 ~
A DEVICE FOR TWISTING ROPE-SHAPED MATERIAL
WITH CHAN~ING TWIST DIRECTION
Technical Field The prasent invention relatPs to a device for twisting rope-shaped material with changing twist direction.
Backqround of the Invention This invention concerns a device for twisting rope-shaped material, particularly of large cross section, with changing twist direction (SZ), consisting of a rotor that changes direction and/or RPM, with two opposing chain drives that are parallel to the rotor axis along an endless path, for collet chucks that grip the material and guide it along a prescribed path determined by a pressure rail, and which subsequently release the material.
Devices of this type have been known for a long time as shown, for example, in U.S.pat. No. 4,311,002.
See also "New developments in SZ-stranding" by Dipl.-Ing.
Dieter Vogelsberg in Wire and Cable Panorama, Aug./Sept.
1985, DKS Fachverlag GmbH, Dusseldorf. Such devices provide the possibility of twisting large cross section leads, such as are required to transmit and distribute electric power, into a cable core according to the SZ-twisting process, used until the priority date of U.S.Pat. No. 4,311,002 only for communication cable leads.
2~8~ 0 At the end of the above-cited article is described a ~anufacturing program, for example, SZ-stranding machines for optical fib~r conductors (small cross-section) or SZ-stranding machines for sheathed power cable on IKV cable (larger cross-section). The individual leads are gathered into a bundle, then held by collets of the device, and, while held along a determined path, they are twisted by rotation of the rotor, by changing the twist direction and/or the ~PM. The release of the twisted lo leads at the end of the defined path (storage path) is caused by return springs located in each collet chucX
half. Since the reliability of the collet release, and therefore the reliability of releasing the twisted material, depends on the reliability of the springs, there is occasionally the danger of a collet chuck seizure disturbing the synchronized operation along the prescribed chain path. This danger exists especially during high production speeds, due to the corresponding centrifugal forces taking place at that time.
Disclosure of Invention Starting from this state of the art, the invention has the task of ensuring the reliability of the collet release in connection with the pathway under the pressure rail, independently of the production speed, and to 2~82~20 assure the synchronized operation of the collets along the prescribed movement path.
This task is fulfilled by the invention, where the collet chucks outside of the pathway are additionally force-guided along the endless path for attachment to the chain drives. This forced guidance applies equally to all collets, so that any irregularities in the reliability of the return springs of each individual collet chuck are eliminated from the start. The forced guidance ensures the synchronized operation of the pair of collet chucks, and the synchronization is not ad-versely affected by higher revolution speeds of the rotor.
The forced guidance itself can be achieved in any desired manner. However, it has been proven to be of special advantage to the invention if the forced guidance consists of a profile rail, in which a supporting roller is located. Excursion of this supporting roller along the forced guidance is impossible, the supporting roller is only released in the pathway determined by the pressure rail, i.e. during the clampin~ or when the collet chucks become effective.
If, as is usual, the collet chucks consist of an outside carriage part and a sled part that is movable with respect to the latter, the supporting rollers lock onto the respective sled part. This means for the device 2~82~2~
of the invention that, when the supporting roller enters into the forced guidance at the end of the pressure rail, thereby unloading the pressure roller and lifting the sled part, finally the entire collet is returned to the starting point via the prescribed chain pathway.
At this (starting) point, the supporting roller leaves the forced guidance, the pressure rail and pressure roller become effective, so that the sled part of each collet chuck, including the corresponding sup-lo porting roller, move the pressure roller, which ispressure-loaded by the pressure rail, in the direction of the material, and the transport along the prescribed pathway can take place after the material has been gripped. This process requires that the pressure rail becomes effective after the supporting roller is released from the profile rail, and before it is reinserted.
It is important for the material being twisted, that the collet chucks grip uniformly, and do not tilt during the guidance, to prevent damage to the material.
For that reason, it was a practice until now to guide each individual collet chuck, so that the carriage part surrounding the sled part slides along a running rail by means of a roller arrangement. However, faster rotor revolution and the corresponding centrifugal forces have shown that, until now, the guidance of the carriage part was insufficient, because the collet chucks always tilted 2082~2~
or tipped. To remedy this situation and guide the carriage part surrounding the sled part, the invention provides a running rail that extends on both sides along the length of the pressure rail in the axial direction.
It is useful to dimension the extension so that the carriage part is guided by the running rollers along its length, until the pressure roller becomes effective.
Right from the start, this eliminates any tilting or tipping of the collet chucks in the transition area between forced guidance and effectiveness of the collets, which is especially sensitive to disturbances. In this connection, it was shown to be advantageous to install four running rollers, symmetrically placed on the running rail, to guide the collet.
According to a further thought of the invention, the synchronous operation of the collet chucks along the prescribed pathways also requires attaching the collets to at least two chain links on the chain drives. A
particularly advantageous solution results, when three chain drive links are used as holds, for symmetry pur-poses. Additional outside shackles are useful for attaching the collets, and at the same time serve to laterally stabilize the collets, as these hang on the chain drives.
The contact pressure of the collet chucks results from a pressure roller in each collet half, which is 21~82020 pressure loaded by the pressure rail and affects the sledpart of the collet chuc~. Depending on the di~meter of the material to be twisted, and the sensitivity of its surface to pressure load, etc., adapting the respective contact pressure of the collet chucks to the material is often unavoidable. In this connection, it was proven useful for the invention to produce the contact pressure of the pressure rollers by centrally adjusting the position of the pressure rail.
Devices of this type always have two collet halves joining from opposing sides of the material, at the point of effectivene~s on the material. This not only is important to the synchronous operation of a chain drive, but rather the synchronous operation of both chain drives must be considered, if the material is to be gripped without damage by collet chucks on two sides. To achieve this, the drive motors are connected to each other by conical gears. The same purpose is achieved with spur-toothed gears or chain drives, instead of the conical gears.
For twisting the leads of an electric power cable without problems, for example with equal length of lay and uniform twist, it is important for the material to be stretched when it runs over the prescribed path under the pressure rail. It was shown to be advantageous for this purpose to use three simultaneously loaded collet pairs 2~2~
along the length of the ~orced guidance and the pressure rail.
These and other objects, features and advantages of the present invention will become more apparent in light of the following detailed description of a best mode embodiment thereof, as illustrated in the accompanying drawing.
Brief Description of the Drawinq Fig. 1 shows a typical twisting device 1 as a component of a full installation.
Fig. 2 shows a forced guidance, according to the present invention.
Fig. 3 shows a U-shaped profile rail, according to the present invention.
Fig. 4 shows a side view of the collet chuck, according to the invention.
Fig. 5 shows a view of the U-shaped prof ile rail of Fig. 3 along a line A-A shown in Fig. 3.
Fig. 6 shows drive motors connected by conical gears via a coupling element.
Best Mode for Carrvinq Out the Invention Fig. 1 shows a typical twisting device 1 as a component of a full installation. It consists essentially of a rotor 4, which rotates inside of bearing 20~2020 blocks 2 and 3. This rotor 4 is driven by a motor 5, which changes direction; a drive with different revolutions can also be used to achieve the twisting effect. The collet chuck halves gripping the material are indicated by 6, and they are driven by chains 7, to which they are attached. The drive wheels 8, driven by drive motors in the rotor, guide the chains 7 in a closed path, while the collet chuck halves 6, as shown in 9, move in the direction of the arrow and form a collet 14 that surrounds the material. The movement of the collet chuck halves 6 in the direction of the arrow is simultaneous with the rotation of the rotor 4 in the circumferential direction.
The material to be twisted, for example the leads 10 of an electric power cable, are drawn from not illustrated storage places and guided to the twisting point 12 via so-called roller guidance devices 11. The adjacent tape winding machine 13 is used to tape the twisted bundle before it enters the rotating collet chuck takeup 1. The twisted material 15 is stretched in this area and may then be wound on not illustrated storage spools.
To ensure the synchronous operation of the collet chuck halves 6, independently of the RPM of rotor 4, and to provide that these collet chucks separate without any problem after they are closed, in addition to their 2~82~2~
attachment to both drive forces 7, the collet chucks also pass through a forced guidance. This measure is made clear in Fig. 2. It shows a forced guidanee for the collet chuck halves 6 in the form of a profile rail 16, for example a U-shape that is adapted to the ehain drive shape. This profile rail 16 ends at the pressure rail 17, which moves the pressure roller 18 assigned to eaeh collet chuck half 6 in the direction of the arrow.
Correspondingly, the pressure roller 18, whieh is guided o along the pressure rail 17, is unloaded by the end of the pressure rail 17 because of its shape, and the profile rail 16 again picks up the eollet ehuck half 6. The running rail 19 is loeated below the pressure rail 17.
It takes over the guidanee of the opposing guidanee rollers 20 and 21 arranged in pairs, whieh are loeated at the outer earriage part of each collet chuck half 6. The running rail 19 extends beyond the length of pressure rail 17, so that the ineoming and outgoing movement of each collet ehuek half 6 takes place uniformly and without tilting. The extension of this running rail 19 is selected so that, at the start of the pressure when the pressure roller 18 reaehes the pressure rail 17, as shown, eaeh eollet ehuck half 6 is already seeurely supported by both pairs of rollers 20 and 21 on the running rail 19. This provides a uniform transition from the foreed guidanee to the pressure-loaded guidance, and 2~82020 vice versa, from the pressure-loaded guidance to the forced guidance.
As mentioned before, the forced guidance is exerted by a U-shaped profile rail. This configuration is shown in Fig. 3. Fig. 5 shows another view corresponding to the dotted line A-A of Fig. 3. The supporting roller 22 fits into the profile rail 16; it extends to the carrier 23, which is locked to the sled part 24. In the configuration example, the profile rail 16 is shown by broken lines, i.e. this profile rail is not active at the moment because the pressure roller 18 is being affected by the pressure rail 17, which means that the sled part 24 is pressed against the rope-shaped material 9. In a mirror image, a second collet chuck half holds the material 9 from the other side, exerting a power grip between the material and the twisting device.
Fig. 3 also clarifies the connection between the outer carriage part 25 and the chaln drive 7, where an outside shackle 26 is used, which is advantageously attached to three chain links by the protruding bolts 27, creating a vibration-resistant and tilt-free link. The bolt connection 28 serves to attach the outside shackle 26 to the outer carriage part 25.
Furthermore, to ensure a synchronous tilt-free operation, four running rollers 20 or 21 are provided on the outer carriage 25, and roll on the running rail 19 when the pairs of collet chuck halves 6 join up.
A side view of the collet chuck according to the invention is shown in Fig. 4. The pairs of running rollers 20 and 21 are attached to the outer carriage part 25, symmetrically to each other and on both sides of the not illustrated running rail. The tilt-free connection between the outer carriage part and the chain drive is provided by the outside shackles 26 on both sides of the chain, which are linked to the chain by the traversing chain bolts 27, and are locked to the outer carriage part by bolt connection 28. The holder 23, which is locked to the sled part, carries the supporting roller 22 on its upper end. This supporting rollers fits into the profile rail, which serves as the forced guidance during operation.
Fig. 6 shows driver motors 30, 32 connected by conical gears 35, 36, respectively, via a coupling element 38 for synchronous operation. Also shown are respective bearing casings 40, 42, chain or sprocket wheels 44, 46, and gear units 48, 50.
Although the invention has been shown and described with respect to a best-mode embodiment thereof, it should be understood by those skilled in the art that the foregoing and various other changes, omissions and additions in the form and detail thereof may be made 2~g2020 therein without departing ~rom the spirit and scope of the invention.
A DEVICE FOR TWISTING ROPE-SHAPED MATERIAL
WITH CHAN~ING TWIST DIRECTION
Technical Field The prasent invention relatPs to a device for twisting rope-shaped material with changing twist direction.
Backqround of the Invention This invention concerns a device for twisting rope-shaped material, particularly of large cross section, with changing twist direction (SZ), consisting of a rotor that changes direction and/or RPM, with two opposing chain drives that are parallel to the rotor axis along an endless path, for collet chucks that grip the material and guide it along a prescribed path determined by a pressure rail, and which subsequently release the material.
Devices of this type have been known for a long time as shown, for example, in U.S.pat. No. 4,311,002.
See also "New developments in SZ-stranding" by Dipl.-Ing.
Dieter Vogelsberg in Wire and Cable Panorama, Aug./Sept.
1985, DKS Fachverlag GmbH, Dusseldorf. Such devices provide the possibility of twisting large cross section leads, such as are required to transmit and distribute electric power, into a cable core according to the SZ-twisting process, used until the priority date of U.S.Pat. No. 4,311,002 only for communication cable leads.
2~8~ 0 At the end of the above-cited article is described a ~anufacturing program, for example, SZ-stranding machines for optical fib~r conductors (small cross-section) or SZ-stranding machines for sheathed power cable on IKV cable (larger cross-section). The individual leads are gathered into a bundle, then held by collets of the device, and, while held along a determined path, they are twisted by rotation of the rotor, by changing the twist direction and/or the ~PM. The release of the twisted lo leads at the end of the defined path (storage path) is caused by return springs located in each collet chucX
half. Since the reliability of the collet release, and therefore the reliability of releasing the twisted material, depends on the reliability of the springs, there is occasionally the danger of a collet chuck seizure disturbing the synchronized operation along the prescribed chain path. This danger exists especially during high production speeds, due to the corresponding centrifugal forces taking place at that time.
Disclosure of Invention Starting from this state of the art, the invention has the task of ensuring the reliability of the collet release in connection with the pathway under the pressure rail, independently of the production speed, and to 2~82~20 assure the synchronized operation of the collets along the prescribed movement path.
This task is fulfilled by the invention, where the collet chucks outside of the pathway are additionally force-guided along the endless path for attachment to the chain drives. This forced guidance applies equally to all collets, so that any irregularities in the reliability of the return springs of each individual collet chuck are eliminated from the start. The forced guidance ensures the synchronized operation of the pair of collet chucks, and the synchronization is not ad-versely affected by higher revolution speeds of the rotor.
The forced guidance itself can be achieved in any desired manner. However, it has been proven to be of special advantage to the invention if the forced guidance consists of a profile rail, in which a supporting roller is located. Excursion of this supporting roller along the forced guidance is impossible, the supporting roller is only released in the pathway determined by the pressure rail, i.e. during the clampin~ or when the collet chucks become effective.
If, as is usual, the collet chucks consist of an outside carriage part and a sled part that is movable with respect to the latter, the supporting rollers lock onto the respective sled part. This means for the device 2~82~2~
of the invention that, when the supporting roller enters into the forced guidance at the end of the pressure rail, thereby unloading the pressure roller and lifting the sled part, finally the entire collet is returned to the starting point via the prescribed chain pathway.
At this (starting) point, the supporting roller leaves the forced guidance, the pressure rail and pressure roller become effective, so that the sled part of each collet chuck, including the corresponding sup-lo porting roller, move the pressure roller, which ispressure-loaded by the pressure rail, in the direction of the material, and the transport along the prescribed pathway can take place after the material has been gripped. This process requires that the pressure rail becomes effective after the supporting roller is released from the profile rail, and before it is reinserted.
It is important for the material being twisted, that the collet chucks grip uniformly, and do not tilt during the guidance, to prevent damage to the material.
For that reason, it was a practice until now to guide each individual collet chuck, so that the carriage part surrounding the sled part slides along a running rail by means of a roller arrangement. However, faster rotor revolution and the corresponding centrifugal forces have shown that, until now, the guidance of the carriage part was insufficient, because the collet chucks always tilted 2082~2~
or tipped. To remedy this situation and guide the carriage part surrounding the sled part, the invention provides a running rail that extends on both sides along the length of the pressure rail in the axial direction.
It is useful to dimension the extension so that the carriage part is guided by the running rollers along its length, until the pressure roller becomes effective.
Right from the start, this eliminates any tilting or tipping of the collet chucks in the transition area between forced guidance and effectiveness of the collets, which is especially sensitive to disturbances. In this connection, it was shown to be advantageous to install four running rollers, symmetrically placed on the running rail, to guide the collet.
According to a further thought of the invention, the synchronous operation of the collet chucks along the prescribed pathways also requires attaching the collets to at least two chain links on the chain drives. A
particularly advantageous solution results, when three chain drive links are used as holds, for symmetry pur-poses. Additional outside shackles are useful for attaching the collets, and at the same time serve to laterally stabilize the collets, as these hang on the chain drives.
The contact pressure of the collet chucks results from a pressure roller in each collet half, which is 21~82020 pressure loaded by the pressure rail and affects the sledpart of the collet chuc~. Depending on the di~meter of the material to be twisted, and the sensitivity of its surface to pressure load, etc., adapting the respective contact pressure of the collet chucks to the material is often unavoidable. In this connection, it was proven useful for the invention to produce the contact pressure of the pressure rollers by centrally adjusting the position of the pressure rail.
Devices of this type always have two collet halves joining from opposing sides of the material, at the point of effectivene~s on the material. This not only is important to the synchronous operation of a chain drive, but rather the synchronous operation of both chain drives must be considered, if the material is to be gripped without damage by collet chucks on two sides. To achieve this, the drive motors are connected to each other by conical gears. The same purpose is achieved with spur-toothed gears or chain drives, instead of the conical gears.
For twisting the leads of an electric power cable without problems, for example with equal length of lay and uniform twist, it is important for the material to be stretched when it runs over the prescribed path under the pressure rail. It was shown to be advantageous for this purpose to use three simultaneously loaded collet pairs 2~2~
along the length of the ~orced guidance and the pressure rail.
These and other objects, features and advantages of the present invention will become more apparent in light of the following detailed description of a best mode embodiment thereof, as illustrated in the accompanying drawing.
Brief Description of the Drawinq Fig. 1 shows a typical twisting device 1 as a component of a full installation.
Fig. 2 shows a forced guidance, according to the present invention.
Fig. 3 shows a U-shaped profile rail, according to the present invention.
Fig. 4 shows a side view of the collet chuck, according to the invention.
Fig. 5 shows a view of the U-shaped prof ile rail of Fig. 3 along a line A-A shown in Fig. 3.
Fig. 6 shows drive motors connected by conical gears via a coupling element.
Best Mode for Carrvinq Out the Invention Fig. 1 shows a typical twisting device 1 as a component of a full installation. It consists essentially of a rotor 4, which rotates inside of bearing 20~2020 blocks 2 and 3. This rotor 4 is driven by a motor 5, which changes direction; a drive with different revolutions can also be used to achieve the twisting effect. The collet chuck halves gripping the material are indicated by 6, and they are driven by chains 7, to which they are attached. The drive wheels 8, driven by drive motors in the rotor, guide the chains 7 in a closed path, while the collet chuck halves 6, as shown in 9, move in the direction of the arrow and form a collet 14 that surrounds the material. The movement of the collet chuck halves 6 in the direction of the arrow is simultaneous with the rotation of the rotor 4 in the circumferential direction.
The material to be twisted, for example the leads 10 of an electric power cable, are drawn from not illustrated storage places and guided to the twisting point 12 via so-called roller guidance devices 11. The adjacent tape winding machine 13 is used to tape the twisted bundle before it enters the rotating collet chuck takeup 1. The twisted material 15 is stretched in this area and may then be wound on not illustrated storage spools.
To ensure the synchronous operation of the collet chuck halves 6, independently of the RPM of rotor 4, and to provide that these collet chucks separate without any problem after they are closed, in addition to their 2~82~2~
attachment to both drive forces 7, the collet chucks also pass through a forced guidance. This measure is made clear in Fig. 2. It shows a forced guidanee for the collet chuck halves 6 in the form of a profile rail 16, for example a U-shape that is adapted to the ehain drive shape. This profile rail 16 ends at the pressure rail 17, which moves the pressure roller 18 assigned to eaeh collet chuck half 6 in the direction of the arrow.
Correspondingly, the pressure roller 18, whieh is guided o along the pressure rail 17, is unloaded by the end of the pressure rail 17 because of its shape, and the profile rail 16 again picks up the eollet ehuck half 6. The running rail 19 is loeated below the pressure rail 17.
It takes over the guidanee of the opposing guidanee rollers 20 and 21 arranged in pairs, whieh are loeated at the outer earriage part of each collet chuck half 6. The running rail 19 extends beyond the length of pressure rail 17, so that the ineoming and outgoing movement of each collet ehuek half 6 takes place uniformly and without tilting. The extension of this running rail 19 is selected so that, at the start of the pressure when the pressure roller 18 reaehes the pressure rail 17, as shown, eaeh eollet ehuck half 6 is already seeurely supported by both pairs of rollers 20 and 21 on the running rail 19. This provides a uniform transition from the foreed guidanee to the pressure-loaded guidance, and 2~82020 vice versa, from the pressure-loaded guidance to the forced guidance.
As mentioned before, the forced guidance is exerted by a U-shaped profile rail. This configuration is shown in Fig. 3. Fig. 5 shows another view corresponding to the dotted line A-A of Fig. 3. The supporting roller 22 fits into the profile rail 16; it extends to the carrier 23, which is locked to the sled part 24. In the configuration example, the profile rail 16 is shown by broken lines, i.e. this profile rail is not active at the moment because the pressure roller 18 is being affected by the pressure rail 17, which means that the sled part 24 is pressed against the rope-shaped material 9. In a mirror image, a second collet chuck half holds the material 9 from the other side, exerting a power grip between the material and the twisting device.
Fig. 3 also clarifies the connection between the outer carriage part 25 and the chaln drive 7, where an outside shackle 26 is used, which is advantageously attached to three chain links by the protruding bolts 27, creating a vibration-resistant and tilt-free link. The bolt connection 28 serves to attach the outside shackle 26 to the outer carriage part 25.
Furthermore, to ensure a synchronous tilt-free operation, four running rollers 20 or 21 are provided on the outer carriage 25, and roll on the running rail 19 when the pairs of collet chuck halves 6 join up.
A side view of the collet chuck according to the invention is shown in Fig. 4. The pairs of running rollers 20 and 21 are attached to the outer carriage part 25, symmetrically to each other and on both sides of the not illustrated running rail. The tilt-free connection between the outer carriage part and the chain drive is provided by the outside shackles 26 on both sides of the chain, which are linked to the chain by the traversing chain bolts 27, and are locked to the outer carriage part by bolt connection 28. The holder 23, which is locked to the sled part, carries the supporting roller 22 on its upper end. This supporting rollers fits into the profile rail, which serves as the forced guidance during operation.
Fig. 6 shows driver motors 30, 32 connected by conical gears 35, 36, respectively, via a coupling element 38 for synchronous operation. Also shown are respective bearing casings 40, 42, chain or sprocket wheels 44, 46, and gear units 48, 50.
Although the invention has been shown and described with respect to a best-mode embodiment thereof, it should be understood by those skilled in the art that the foregoing and various other changes, omissions and additions in the form and detail thereof may be made 2~g2020 therein without departing ~rom the spirit and scope of the invention.
Claims (13)
1. A device for twisting rope-shaped material, with changing twist direction (SZ), consisting of a rotor that changes direction and/or RPM, with two opposing chain drives that are parallel to the rotor axis along an endless path, with collet chucks that surround the material along a prescribed pathway determined by a pressure rail, and subsequently release it, characterized in that the collet chucks are force-guided outside of the pathway, for additional attachment to the chain drives along the endless path.
2. A device according to claim 1, characterized in that the forced guidance consists of a profile rail, into which a supporting roller fits.
3. A device according to claim 2 with collet chucks, which consist of an outer carriage and an inner sled part that moves with respect to the carriage part, characterized in that the supporting rollers have a locking effect on each sled part.
4. A device according to claim 3, characterized in that the sled part of each collet chuck, including the corresponding supporting roller, can move outside of the forced guidance in the direction of the material, by means of a pressure roller that is pressure-loaded by the pressure rail.
5. A device according to claim 4, characterized in that the pressure rail becomes effective after the supporting roller is released from the profile rail, and before it is reinserted into the profile rail.
6. A device according to claim 3, characterized in that a running rail serves to guide the carriage part surrounding the sled part, and extends on both sides over the length of the pressure rail in the axial direction.
7. A device according to claim 6, characterized in that the extension is dimensioned in a way that the carriage part is guided by the running rollers along its length, until the pressure roller becomes effective.
8. A device according to claim 7, characterized in that the guidance is performed by four running rollers, symmetrically arranged with respect to the running rail.
9. A device according to claim 1, characterized in that the collet chucks are attached to at least two chain links of the chain drives.
10. A device according to claim 9, characterized in that additional outside shackles are provided to attach the collet chucks.
11. A device according to claim 4, characterized by the central adjustment of the pressure force of the pressure rollers, achieved by changing the pressure rail position.
12. A device according to claim l, characterized in that chain drive motors are connected by conical gears or spur-toothed gears, for synchronous operation.
13. A device according to claim 1, characterized in that at least three pairs of collet chucks are simultaneously pressure-loaded and act on the material, because of the length of the forced guidance and the length of the pressure rail.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4136266A DE4136266A1 (en) | 1991-11-04 | 1991-11-04 | DEVICE FOR STRINGING STRAND-SHAPED GOODS, IN PARTICULAR LARGER CROSS-SECTIONS WITH ALTERNATING PUNCHING DIRECTION |
| DEP4136266.7 | 1991-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2082020A1 true CA2082020A1 (en) | 1993-05-05 |
Family
ID=6444049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002082020A Abandoned CA2082020A1 (en) | 1991-11-04 | 1992-11-03 | Device for twisting rope-shaped material with changing twist direction |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5414988A (en) |
| EP (1) | EP0540893B1 (en) |
| JP (1) | JPH05321176A (en) |
| AU (1) | AU657807B2 (en) |
| CA (1) | CA2082020A1 (en) |
| DE (2) | DE4136266A1 (en) |
| DK (1) | DK0540893T3 (en) |
| RU (1) | RU2084573C1 (en) |
| ZA (1) | ZA928514B (en) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8795332B2 (en) | 2002-09-30 | 2014-08-05 | Ethicon, Inc. | Barbed sutures |
| US6241747B1 (en) | 1993-05-03 | 2001-06-05 | Quill Medical, Inc. | Barbed Bodily tissue connector |
| US5839636A (en) * | 1996-02-22 | 1998-11-24 | Lockheed Martin Corporation | Suction-operated linear traction drive for underwater handling of towed arrays |
| US5931855A (en) | 1997-05-21 | 1999-08-03 | Frank Hoffman | Surgical methods using one-way suture |
| US7056331B2 (en) | 2001-06-29 | 2006-06-06 | Quill Medical, Inc. | Suture method |
| US6848152B2 (en) | 2001-08-31 | 2005-02-01 | Quill Medical, Inc. | Method of forming barbs on a suture and apparatus for performing same |
| DE10160055A1 (en) * | 2001-12-06 | 2003-06-18 | Degussa | Diffuse reflecting surfaces for their manufacture |
| US6773450B2 (en) | 2002-08-09 | 2004-08-10 | Quill Medical, Inc. | Suture anchor and method |
| US20040088003A1 (en) | 2002-09-30 | 2004-05-06 | Leung Jeffrey C. | Barbed suture in combination with surgical needle |
| US8100940B2 (en) | 2002-09-30 | 2012-01-24 | Quill Medical, Inc. | Barb configurations for barbed sutures |
| US7624487B2 (en) | 2003-05-13 | 2009-12-01 | Quill Medical, Inc. | Apparatus and method for forming barbs on a suture |
| SG164370A1 (en) | 2004-05-14 | 2010-09-29 | Quill Medical Inc | Suture methods and devices |
| US20080255612A1 (en) | 2007-04-13 | 2008-10-16 | Angiotech Pharmaceuticals, Inc. | Self-retaining systems for surgical procedures |
| WO2009042841A2 (en) | 2007-09-27 | 2009-04-02 | Angiotech Pharmaceuticals, Inc. | Self-retaining sutures including tissue retainers having improved strength |
| US8916077B1 (en) | 2007-12-19 | 2014-12-23 | Ethicon, Inc. | Self-retaining sutures with retainers formed from molten material |
| EP2222233B1 (en) | 2007-12-19 | 2020-03-25 | Ethicon, LLC | Self-retaining sutures with heat-contact mediated retainers |
| US8118834B1 (en) | 2007-12-20 | 2012-02-21 | Angiotech Pharmaceuticals, Inc. | Composite self-retaining sutures and method |
| ES2602570T3 (en) | 2008-01-30 | 2017-02-21 | Ethicon Llc | Apparatus and method for forming self-retaining sutures |
| US8615856B1 (en) | 2008-01-30 | 2013-12-31 | Ethicon, Inc. | Apparatus and method for forming self-retaining sutures |
| EP2249712B8 (en) | 2008-02-21 | 2018-12-26 | Ethicon LLC | Method and apparatus for elevating retainers on self-retaining sutures |
| US8216273B1 (en) | 2008-02-25 | 2012-07-10 | Ethicon, Inc. | Self-retainers with supporting structures on a suture |
| US8641732B1 (en) | 2008-02-26 | 2014-02-04 | Ethicon, Inc. | Self-retaining suture with variable dimension filament and method |
| CN102056552B (en) | 2008-04-15 | 2013-07-03 | 伊西康有限责任公司 | Self-retaining sutures with bi-directional retainers or uni-directional retainers |
| MX339174B (en) | 2008-11-03 | 2016-05-12 | Ethicon Llc | Length of self-retaining suture and method and device for using the same. |
| WO2011090628A2 (en) | 2009-12-29 | 2011-07-28 | Angiotech Pharmaceuticals, Inc. | Bidirectional self-retaining sutures with laser-marked and/or non-laser marked indicia and methods |
| CA2798373C (en) | 2010-05-04 | 2018-10-23 | Ethicon, Llc | Self-retaining systems having laser-cut retainers |
| EP3155978B1 (en) | 2010-06-11 | 2022-04-13 | Cilag GmbH International | Suture delivery tools for endoscopic and robot-assisted surgery |
| WO2012061658A2 (en) | 2010-11-03 | 2012-05-10 | Angiotech Pharmaceuticals, Inc. | Drug-eluting self-retaining sutures and methods relating thereto |
| US9675341B2 (en) | 2010-11-09 | 2017-06-13 | Ethicon Inc. | Emergency self-retaining sutures and packaging |
| JP6125488B2 (en) | 2011-03-23 | 2017-05-10 | エシコン・エルエルシーＥｔｈｉｃｏｎ ＬＬＣ | Self-holding variable loop suture |
| US20130172931A1 (en) | 2011-06-06 | 2013-07-04 | Jeffrey M. Gross | Methods and devices for soft palate tissue elevation procedures |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1865362A (en) * | 1931-01-12 | 1932-06-28 | Joseph E Evans | Die for compressing the strands of wire born |
| US3225798A (en) * | 1963-11-26 | 1965-12-28 | Dessureau Joseph Theodore | Means for processing stone sawing wires |
| US3526570A (en) * | 1966-08-25 | 1970-09-01 | Bethlehem Steel Corp | Parallel wire strand |
| US3945547A (en) * | 1970-04-03 | 1976-03-23 | Wean United Inc. | Tractive apparatus |
| US4000636A (en) * | 1975-05-01 | 1977-01-04 | Vladimir Nikolaevich Shubin | Pipe bending machine |
| US4311002A (en) * | 1977-09-22 | 1982-01-19 | Kabel Metallwerke Ghh | Forming stranded stock |
| DE2946248A1 (en) * | 1979-11-16 | 1981-05-27 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | METHOD AND DEVICE FOR CONTINUOUS WIREING OF LARGER CROSS-SECTIONS FOR ELECTRICAL CABLES |
| DE3940413A1 (en) * | 1989-12-07 | 1991-06-13 | Kabelmetal Electro Gmbh | CORDING MACHINE FOR CONTINUOUS CORDING OF ELECTRICAL CABLES AND CABLES |
-
1991
- 1991-11-04 DE DE4136266A patent/DE4136266A1/en not_active Withdrawn
-
1992
- 1992-10-08 DK DK92117165.8T patent/DK0540893T3/en active
- 1992-10-08 DE DE59204909T patent/DE59204909D1/en not_active Expired - Fee Related
- 1992-10-08 EP EP92117165A patent/EP0540893B1/en not_active Expired - Lifetime
- 1992-11-02 JP JP4294574A patent/JPH05321176A/en not_active Withdrawn
- 1992-11-03 AU AU28110/92A patent/AU657807B2/en not_active Ceased
- 1992-11-03 RU RU9292004396A patent/RU2084573C1/en active
- 1992-11-03 CA CA002082020A patent/CA2082020A1/en not_active Abandoned
- 1992-11-04 ZA ZA928514A patent/ZA928514B/en unknown
-
1994
- 1994-07-27 US US08/281,133 patent/US5414988A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05321176A (en) | 1993-12-07 |
| DE4136266A1 (en) | 1993-05-06 |
| DK0540893T3 (en) | 1996-05-06 |
| DE59204909D1 (en) | 1996-02-15 |
| ZA928514B (en) | 1994-02-07 |
| US5414988A (en) | 1995-05-16 |
| RU2084573C1 (en) | 1997-07-20 |
| AU657807B2 (en) | 1995-03-23 |
| AU2811092A (en) | 1993-05-06 |
| EP0540893B1 (en) | 1996-01-03 |
| EP0540893A1 (en) | 1993-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |